From 77e97abf129c5028385dd72587eabab68db0d954 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= Date: Thu, 28 May 2020 19:08:55 +0200 Subject: bcm27xx: update to latest patches from RPi foundation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Also removes random module and switches to new bcm2711 thermal driver. Boot tested on RPi 4B v1.1 4G. Signed-off-by: Álvaro Fernández Rojas --- ...2835-codec-implement-V4L2_CID_MIN_BUFFERS.patch | 46 ++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 target/linux/bcm27xx/patches-5.4/950-0287-staging-bcm2835-codec-implement-V4L2_CID_MIN_BUFFERS.patch (limited to 'target/linux/bcm27xx/patches-5.4/950-0287-staging-bcm2835-codec-implement-V4L2_CID_MIN_BUFFERS.patch') diff --git a/target/linux/bcm27xx/patches-5.4/950-0287-staging-bcm2835-codec-implement-V4L2_CID_MIN_BUFFERS.patch b/target/linux/bcm27xx/patches-5.4/950-0287-staging-bcm2835-codec-implement-V4L2_CID_MIN_BUFFERS.patch new file mode 100644 index 0000000000..6e4af3e38d --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0287-staging-bcm2835-codec-implement-V4L2_CID_MIN_BUFFERS.patch @@ -0,0 +1,46 @@ +From 8ffc08d336326d576b84d59135402f08cf2cf41c Mon Sep 17 00:00:00 2001 +From: Chen-Yu Tsai +Date: Mon, 22 Jul 2019 22:13:30 +0800 +Subject: [PATCH] staging: bcm2835-codec: implement + V4L2_CID_MIN_BUFFERS_FOR_CAPTURE + +The stateful decoder specification shows an optional step for retrieving +the miminum number of capture buffers required for the decoder to +proceed. While not a required parameter, having it makes some +applications happy. + +bcm2835-codec is a little different from other decoder implementations +in that there is an intermediate format conversion between the hardware +and V4L2 buffers. The number of capture buffers required is therefore +independent of the stream and DPB etc. + +There are plans to remove the conversion, but it requires a fair amount +of rework within the firmware. Until that is done, simply return a value +of 1. + +Signed-off-by: Chen-Yu Tsai +--- + .../vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c | 12 ++++++++++++ + 1 file changed, 12 insertions(+) + +--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c ++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c +@@ -2357,6 +2357,18 @@ static int bcm2835_codec_open(struct fil + } + ctx->fh.ctrl_handler = hdl; + v4l2_ctrl_handler_setup(hdl); ++ } else if (dev->role == DECODE) { ++ v4l2_ctrl_handler_init(hdl, 1); ++ ++ v4l2_ctrl_new_std(hdl, &bcm2835_codec_ctrl_ops, ++ V4L2_CID_MIN_BUFFERS_FOR_CAPTURE, ++ 1, 1, 1, 1); ++ if (hdl->error) { ++ rc = hdl->error; ++ goto free_ctrl_handler; ++ } ++ ctx->fh.ctrl_handler = hdl; ++ v4l2_ctrl_handler_setup(hdl); + } + + ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &queue_init); -- cgit v1.2.3